Remove TypeckMir

Author: JohnTitor

src/librustc_mir/borrow_check/nll/type_check/liveness/mod.rs

@@ -47,11 +47,10 @@ pub(super) fn generate<'gcx, 'tcx>(
         mir.local_decls.indices().collect()
     } else {
         let free_regions = {
-            let borrowck_context = typeck.borrowck_context.as_ref().unwrap();
             regions_that_outlive_free_regions(
                 typeck.infcx.num_region_vars(),
-                &borrowck_context.universal_regions,
-                &borrowck_context.constraints.outlives_constraints,
+                &typeck.borrowck_context.universal_regions,
+                &typeck.borrowck_context.constraints.outlives_constraints,
             )
         };
         compute_live_locals(typeck.tcx(), &free_regions, mir)

src/librustc_mir/borrow_check/nll/type_check/liveness/trace.rs

@@ -517,16 +517,15 @@ impl LivenessContext<'_, '_, '_, '_, 'tcx> {
 
         let tcx = typeck.tcx();
         tcx.for_each_free_region(&value, |live_region| {
-            let borrowck_context = typeck.borrowck_context.as_mut().unwrap();
-            let live_region_vid = borrowck_context
+            let live_region_vid = typeck.borrowck_context
                 .universal_regions
                 .to_region_vid(live_region);
-            borrowck_context
+            typeck.borrowck_context
                 .constraints
                 .liveness_constraints
                 .add_elements(live_region_vid, live_at);
 
-            if let Some(facts) = borrowck_context.all_facts {
+            if let Some(facts) = typeck.borrowck_context.all_facts {
                 for point in live_at.iter() {
                     let loc = elements.to_location(point);
                     facts.region_live_at.push((live_region_vid, location_table.start_index(loc)));